Hi David and team,
In Yi Liu's tool, Wikidata Property Explorer, I noticed that the query performance could be better ideally. Currently the query takes about 9 seconds and I'm asking if there might be anything to help reduce that considerably? Refactoring query for optimization, backend changes, anything you can think of Davd?
SELECT DISTINCT ?prop ?label ?desc ?type (GROUP_CONCAT(DISTINCT ?alias; SEPARATOR = " | ") AS ?aliases) WHERE {
?prop (wdt:P31/(wdt:P279*)) wd:Q18616576;
wikibase:propertyType ?type.
OPTIONAL {
?prop rdfs:label ?label.
FILTER((LANG(?label)) = "en")
}
OPTIONAL {
?prop schema:description ?desc.
FILTER((LANG(?desc)) = "en")
}
OPTIONAL {
?prop skos:altLabel ?alias.
FILTER((LANG(?alias)) = "en")
}
}
GROUP BY ?prop ?label ?desc ?type